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Anastigmat · 08-01-2008, 10:05 PM

Originally Posted by Denis

I was looking at the Nikon D3 features and realized that it can take a lens build for small sensor by simply recognizing it and auto size the sensor for it. If Pentax would build a FF sensor the same principle could apply. Let say a FF sensor of 16 megapixels could produce images in the 10 megapixels range with a DA lens. This would eliminate the need to purchase new lenses to avoid the vignetting. It looks like the D3 does it. If the high end bodies are heading in that direction may be Pentax should seriously think of implementing a FF sensor for the future K40D as a example.

That would mean that the lenses built for small image circle has a chip that contains that information. The DA 200 and 300 lenses are supposed to cover the full frame image circle, but it may have a chip that says it is a DA lens, so the camera may automatically set it to crop mode. Personally I don't think a crop mode is necessary. People who buy a full frame can simply sell their DA lenses if they notice vignetting. If the DA200 or 300 they have do not vignette, then they can keep these lenses.

It is no secret that the world is turning to full frame, after years of APS-C sensors and talk of APS-C being the format of the future. Finally full frame sensors are becoming more affordable, thus removing the only reason we have cropped sensors to begin with.

08-01-2008, 10:05 PM	#8
Anastigmat Senior Member Join Date: Dec 2007 Location: USA Gallery Photos: 0 Posts: 118	Originally Posted by Denis I was looking at the Nikon D3 features and realized that it can take a lens build for small sensor by simply recognizing it and auto size the sensor for it. If Pentax would build a FF sensor the same principle could apply. Let say a FF sensor of 16 megapixels could produce images in the 10 megapixels range with a DA lens. This would eliminate the need to purchase new lenses to avoid the vignetting. It looks like the D3 does it. If the high end bodies are heading in that direction may be Pentax should seriously think of implementing a FF sensor for the future K40D as a example. That would mean that the lenses built for small image circle has a chip that contains that information. The DA 200 and 300 lenses are supposed to cover the full frame image circle, but it may have a chip that says it is a DA lens, so the camera may automatically set it to crop mode. Personally I don't think a crop mode is necessary. People who buy a full frame can simply sell their DA lenses if they notice vignetting. If the DA200 or 300 they have do not vignette, then they can keep these lenses. It is no secret that the world is turning to full frame, after years of APS-C sensors and talk of APS-C being the format of the future. Finally full frame sensors are becoming more affordable, thus removing the only reason we have cropped sensors to begin with.